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Demoutable barrier for premises

  • US 20100236166A1
  • Filed: 07/04/2006
  • Published: 09/23/2010
  • Est. Priority Date: 07/12/2005
  • Status: Abandoned Application
First Claim
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1. A demountable barrier (8) for substantially preventing or minimising access of air and/or water into premises (2) through an access region (4) provided in a wall (6) of the premises, wherein the barrier (8) comprises:

  • a frame member (10) adapted to be firmly secured to the wall of the premises and surrounding the access region, the frame member having a longitudinal channel (20) therein in a first face (22) thereof open towards the wall of the premises;

    a resilient membrane (30) secured to the frame member and framed by the frame member and overlying and closing the longitudinal channel;

    at least one non-return air valve means (28) extending to the longitudinal channel from a second face (24) of the frame member and sealed through at least one aperture provided in the frame member;

    a compressible sealing member (38) adapted to be located between the frame member and the wall of the premises; and

    pump means (40) to provide pressurised air into the longitudinal channel through the at least one non-return air valve means, to effect ballooning of the resilient membrane overlying the longitudinal channel and compression of the compressible sealing member, whereby a substantially water- and/or air-tight seal is effected between the frame member and the wall.

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